The ornamental design for a device for medicaltreatment, as shown and described.
FIG. 1 is a perspective view of a device for medical treatment showing the new design;
FIG. 2 is a perspective view of the device in FIG. 1;
FIG. 3 is a front view of the device in FIG. 1;
FIG. 4 is a right side view of the device in FIG. 1;
FIG. 5 is a rear view of the device in FIG. 1;
FIG. 6 is a left side view of the device in FIG. 1;
FIG. 7 is a top view of the device in FIG. 1; and,
FIG. 8 is a bottom view of the device in FIG. 1.
The broken lines in the drawing views are included for the purpose of illustrating portions of the device for medical treatment that form no part of the claimed design.